Parker Air Cylinders - Push & Pull Forces
Theoretical Push & Pull Forces for Pneumatic Cylinders
Push Force and Displacement
Cylinder Bore Size (in) | Piston Area (in2) | 25 psi (Push Stroke Force in lbs) | 50 psi | 65 psi | 80 psi | 100 psi | 250 psi | Cu. Ft. Free Air at 80 lbs Pressure, Req. to Move Max Load 1 in | Displacement Per Inch of Stroke (ft3) |
1-1/8 | 0.994 | 25 | 50 | 65 | 80 | 99 | 249 | 0.00371 | 0.0005751 |
1-1/2 | 1.767 | 44 | 88 | 115 | 142 | 177 | 443 | 0.00659 | 0.0010225 |
2 | 3.14 | 79 | 157 | 204 | 251 | 314 | 785 | 0.01171 | 0.0018171 |
2-1/2 | 4.91 | 123 | 245 | 319 | 393 | 491 | 1228 | 0.01830 | 0.0028414 |
3-1/4 | 8.30 | 208 | 415 | 540 | 664 | 830 | 2075 | 0.03093 | 0.0048032 |
4 | 12.57 | 314 | 628 | 817 | 1006 | 1257 | 3143 | 0.04685 | 0.0072743 |
5 | 19.64 | 491 | 982 | 1277 | 1571 | 1964 | 4910 | 0.07320 | 0.0113657 |
6 | 28.27 | 707 | 1414 | 1838 | 2262 | 2827 | 7068 | 0.10541 | 0.0163599 |
7 | 38.49 | 962 | 1924 | 2502 | 3079 | 3849 | 9623 | 0.14347 | 0.0222743 |
8 | 50.27 | 1257 | 2513 | 3268 | 4022 | 5027 | 12568 | 0.18740 | 0.0290914 |
Pull Force and Displacement
Cylinder Bore Size (in) | Piston Rod Area (in2) | 25 psi (Piston Rod Dia. Force in lbs) | 50 psi | 65 psi | 80 psi | 100 psi | 250 psi | Cu. Ft. Free Air at 80 lbs Pressure, Req. to Move Max Load 1 in | Displacement Per Inch of Stroke (ft3) |
3/8 | 0.110 | 3 | 6 | 7 | 9 | 11 | 28 | 0.00041 | 0.0000636 |
1/2 | 0.196 | 5 | 10 | 13 | 16 | 20 | 49 | 0.00073 | 0.0001134 |
5/8 | 0.307 | 8 | 15 | 20 | 25 | 31 | 77 | 0.00114 | 0.0001176 |
1 | 0.785 | 20 | 39 | 51 | 65 | 79 | 196 | 0.00293 | 0.0004542 |
1-3/8 | 1.49 | 37 | 75 | 97 | 119 | 149 | 373 | 0.00554 | 0.0008622 |
1-3/4 | 2.41 | 60 | 121 | 157 | 193 | 241 | 603 | 0.00897 | 0.0013946 |
General Formulas
Cylinder output forces are derived from the following formula:
F = P X A
F= Force in pounds
P= Pressure at the cylinder in pounds per square inch, gauge
A= Effective area of cylinder piston in square inches
Free Air refers to the normal atmospheric conditions of air at sea level (14.7 psi). Use the above "cu. ft. free air required" data to compute CFM required from a compressor at 80 psi. Cu. ft. of free air required at other pressures can be calculated using the following formula:
V1= (P2 + 14.7) V2 / 14.7
V1= Free air consumption per inch of stroke (cubic feet)
V2= Cubic feet displaced per inch of stroke
P2= Gauge pressure required to move maximum load
Available Pneumatic Cylinder Styles
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Tie Rod Cylinders | ![]() |
Guided Cylinders |
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Round Body Cylinders | ![]() |
Rodless Cylinders |
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Compact Cylinders |
Engineering & Product Selection Information
Pneumatic Product Selection
- Pneumatic Actuators & Air Cylinders
- Pneumatic Cylinders
- Automation Products: rotary actuators, grippers, slide tables, rotary tables, escapement
- Actuator Accessories: Linear alignment couplers, flow controls, air oil tanks, rodlocks, electronic sensors, shock absorbers
Application Engineering Data
- Operating Principles and Construction
- Fluids and Temperature
- Push and Pull Forces
- Mounting Information
- Ports
- Tie Rod Supports, Stroke Data & Stroke Adjusters
- Mounting Classes
- Stop Tubing
- Stroke Selection Chart
- Deceleration Force and Air Requirements
- Cushion Ratings and Air Requirements
- NFPA Rod End Data and Piston Rods
- Modifications, Special Assemblies, Tandem Cylinders, Duplex Cylinders
- Rotary Actuator Torque Requirements
- Rotary Actuator Basic Equations
- Conversion Factors
